Answers

2014-12-03T15:39:16+05:30
The disadvantages of ultrasound scanner are
1.it is heavily operator-dependent
2.review of images provides only limited quality control
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2014-12-04T22:28:57+05:30
1. Frequent calibration with test pieces.
2. Echoes can be misinterpreted.
3. Depends on the skill of operator.
4. limitation of equipment due variousĀ  Depth of the defects
5. Probe has to make positive contact with the object
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